Hanah Siafa lies with her daughter Josephine, 10, while hoping to enter the new Doctors Without Borders treatment center for Ebola in Monrovia, Liberia. Ebola has already killed 413 people in the country.

Liberian officials fear Ebola could soon spread through the capital's largest slum after residents raided a quarantine center for suspected patients and took items including bloody sheets and mattresses.

The violence in the West Point slum occurred late Saturday and was led by residents angry that patients were brought to the holding center from other parts of Monrovia, Tolbert Nyenswah, assistant health minister, said Sunday.

Up to 30 patients were staying at the center and many of them fled at the time of the raid, said Nyenswah. Once they are located they will be transferred to the Ebola center at Monrovia's largest hospital, he said.

West Point residents went on a "looting spree," stealing items from the clinic that were likely infected, said a senior police official, who requested anonymity. The residents took medical equipment and mattresses and sheets that had bloodstains, he said. Ebola is spread through bodily fluids including blood, vomit, feces and sweat.

The incident creates a new challenge for Liberian health officials who were already struggling to contain the outbreak.

Liberian police restored order to West Point on Sunday. The neighborhood, sitting on land between the Montserrado River and the Atlantic Ocean, is home to at least 50,000 people, according to a 2012 survey.

Distrust of government runs high in West Point, with rumors regularly circulating that the officials plan to clear out the slum entirely.

Ebola has killed 1,145 people in West Africa, including 413 in Liberia, according to the World Health Organization.

Other African countries are grappling to curtail Ebola with travel restrictions, suspensions of airline flights, public health messages and quarantines.

Nigeria appears to be making progress in containing the disease. The country has 12 confirmed cases of Ebola, all of which stem from direct contact with the Liberian American man who flew to Nigeria late last month while ill. He infected several health workers before dying.

Since then three others have died in Nigeria from Ebola, according to figures released over the weekend.

In East Africa, Kenya will bar passengers traveling from the three West African countries badly hit by the Ebola outbreak. The suspension is effective midnight Tuesday for all ports of entry for people traveling from or through Sierra Leone, Guinea and Liberia, said Kenya's Health Ministry.